caa a22 4500 445830204 CHVBK 20180317145312.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10686-011-9232-7 doi (NATIONALLICENCE)springer-10.1007/s10686-011-9232-7 Optical Frequency Comb as a general-purpose and wide-band calibration source for astronomical high resolution infrared spectrographs [Elektronische Daten] [Giulia Schettino, Ernesto Oliva, Massimo Inguscio, Carlo Baffa, Elisabetta Giani, Andrea Tozzi, Pablo Pastor] A spectrally filtered Optical Frequency Comb (OFC) laser is proposed as a versatile calibration source for astronomical spectrometers in the 1-2 μm spectral range. Such a source overcomes the limitations of current calibration lamps providing a uniform spectrum of equally spaced lines with similar intensity and extremely high long-term frequency stability. We present preliminary studies and results of a system which filters the OFC from a 100 MHz comb spacing to 16 GHz one, an adequate spacing for spectrometers with resolving power Δλ/λ >30000. The first approach employs two Fabry-Perot cavities in series, made of dielectric coated mirrors, followed by a non-linear optical broadening system. The limitations of such a filtering process are discussed. These can be overcome by the second approach, based on filtering cavities with metallic coated mirrors. Springer Science+Business Media B.V., 2011 Optical Frequency Combs (OFCs) nationallicence Near-IR astronomical spectrographs nationallicence Schettino Giulia Dipartimento di Fisica e Astronomia, Via Sansone 1, 50019, Sesto Fiorentino (Fi), Italy aut Oliva Ernesto INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut Inguscio Massimo Dipartimento di Fisica e Astronomia, Via Sansone 1, 50019, Sesto Fiorentino (Fi), Italy aut Baffa Carlo INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut Giani Elisabetta INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut Tozzi Andrea INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut Pastor Pablo LENS, Via Carrara 1, 50019, Sesto Fiorentino (Fi), Italy aut Experimental Astronomy Springer Netherlands 31/1(2011-08-01), 69-81 0922-6435 31:1<69 2011 31 10686 https://doi.org/10.1007/s10686-011-9232-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10686-011-9232-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schettino Giulia Dipartimento di Fisica e Astronomia, Via Sansone 1, 50019, Sesto Fiorentino (Fi), Italy aut NATIONALLICENCE 700 1- Oliva Ernesto INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut NATIONALLICENCE 700 1- Inguscio Massimo Dipartimento di Fisica e Astronomia, Via Sansone 1, 50019, Sesto Fiorentino (Fi), Italy aut NATIONALLICENCE 700 1- Baffa Carlo INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut NATIONALLICENCE 700 1- Giani Elisabetta INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut NATIONALLICENCE 700 1- Tozzi Andrea INAF-Oss. Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy aut NATIONALLICENCE 700 1- Pastor Pablo LENS, Via Carrara 1, 50019, Sesto Fiorentino (Fi), Italy aut NATIONALLICENCE 773 0- Experimental Astronomy Springer Netherlands 31/1(2011-08-01), 69-81 0922-6435 31:1<69 2011 31 10686 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer